TY - JOUR
T1 - Sommerfeld enhancement from unparticle exchange for dark matter annihilation
AU - Chen, Chuan Hung
AU - Kim, C. S.
N1 - Funding Information:
This work for C.H.C. is supported by the National Science Council of R.O.C. under Grant No: NSC-97-2112-M-006-001-MY3 . The work of C.S.K. is supported in part by Basic Science Research Program through the NRF of Korea funded by MOEST ( 2009-0088395 ), in part by KOSEF through the Joint Research Program ( F01-2009-000-10031-0 ), and in part by WPI Initiative, MEXT , Japan.
PY - 2010/4/12
Y1 - 2010/4/12
N2 - We investigate the implication of unparticle exchange for the possible Sommerfeld enhancement in dark matter annihilation process. Assuming the unparticle exchange during WIMP collision, we solve the Schrödinger equation for the effective potential, and find that the Sommerfeld enhancement factor is dictated by the scale dimension of unparticle as 1 / v3 - 2 dU. Numerically the Sommerfeld enhancement could be O (10 - 103).
AB - We investigate the implication of unparticle exchange for the possible Sommerfeld enhancement in dark matter annihilation process. Assuming the unparticle exchange during WIMP collision, we solve the Schrödinger equation for the effective potential, and find that the Sommerfeld enhancement factor is dictated by the scale dimension of unparticle as 1 / v3 - 2 dU. Numerically the Sommerfeld enhancement could be O (10 - 103).
UR - https://www.scopus.com/pages/publications/77949912301
UR - https://www.scopus.com/pages/publications/77949912301#tab=citedBy
U2 - 10.1016/j.physletb.2010.03.054
DO - 10.1016/j.physletb.2010.03.054
M3 - Article
AN - SCOPUS:77949912301
SN - 0370-2693
VL - 687
SP - 232
EP - 235
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 2-3
ER -